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rust: pci: use to_result() in enable_device_mem()

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Simplify enable_device_mem() by using to_result() to handle the return
value of the corresponding FFI call.

Reviewed-by: Benno Lossin <benno.lossin@proton.me>
Signed-off-by: Danilo Krummrich <dakr@kernel.org>
Acked-by: Boqun Feng <boqun.feng@gmail.com>
Link: https://lore.kernel.org/r/20250314160932.100165-2-dakr@kernel.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Danilo Krummrich 2025-03-14 17:09:04 +01:00 committed by Greg Kroah-Hartman
parent e01968420a
commit d1f6d6c537
1 changed files with 1 additions and 6 deletions
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7
rust/kernel/pci.rs
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@ -382,12 +382,7 @@ impl Device {
/// Enable memory resources for this device.
pub fn enable_device_mem(&self) -> Result {
// SAFETY: `self.as_raw` is guaranteed to be a pointer to a valid `struct pci_dev`.
let ret = unsafe { bindings::pci_enable_device_mem(self.as_raw()) };
if ret != 0 {
Err(Error::from_errno(ret))
} else {
Ok(())
}
to_result(unsafe { bindings::pci_enable_device_mem(self.as_raw()) })
}
/// Enable bus-mastering for this device.